(ITS#5876) Build fix: ODBC

Full_Name: Emmanuel Dreyfus
Version: HEAD
OS: NetBSD-4.0
URL: ftp://ftp.openldap.org/incoming/manu-odbc-20081229.patch
Submission from: (NULL) (213.41.141.172)
In unixODBC and iODBC, SQL_NO_DATA_FOUND was turned into SQL_NO_DATA, starting
with ODBC 3.0. Supporting older ODBC package is easy, we just have to test both
macros, as in the attached patch.
This is an cleanup from a 3 years old patch that has been available in NetBSD
package system.